Only show not-supported window if required (4ZM)

Don't show the empty not supported window if all files opened are supported.

1 files changed, 3 insertions, 1 deletions

diff --git a/mat-gui b/mat-gui
index 76f7a0e..3aa15e1 100755
--- a/mat-gui
+++ b/mat-gui
@@ -276,7 +276,9 @@ data loss, but clean more efficiently'))
                 if self.add_file_to_treeview(filename):
                     not_supported.append(item)
             yield True
-        self.popup_non_supported(not_supported)
+        #self.popup_non_supported(not_supported)
+        if len(not_supported):
+            self.popup_non_supported(not_supported)
         yield False
 
     def add_file_to_treeview(self, filename):